---
product_id: 3737896
title: "- Eaton Bussmann Automotive Circuit Breaker, CB185 Series, 50 A CB185-50 - 1 Each"
brand: "bussmann"
price: "¥8139"
currency: JPY
in_stock: true
category: "Bussmann"
url: https://www.desertcart.jp/products/3737896-eaton-bussmann-automotive-circuit-breaker-cb185-series-50-a-cb185
store_origin: JP
region: Japan
---

# 50A high current rating Waterproof Type III switchable design 1/4-28 threaded stud terminals with SEMS nuts - Eaton Bussmann Automotive Circuit Breaker, CB185 Series, 50 A CB185-50 - 1 Each

**Brand:** bussmann
**Price:** ¥8139
**Availability:** ✅ In Stock

## Summary

> ⚡ Stay powered, stay protected — the circuit breaker your ride deserves!

## Quick Answers

- **What is this?** - Eaton Bussmann Automotive Circuit Breaker, CB185 Series, 50 A CB185-50 - 1 Each by bussmann
- **How much does it cost?** ¥8139 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/3737896-eaton-bussmann-automotive-circuit-breaker-cb185-series-50-a-cb185)

## Best For

- bussmann enthusiasts

## Why This Product

- Trusted bussmann brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Reset & Go:** Manual reset lever for quick recovery without replacements
- • **Seamless Integration:** Flush mount design with threaded stud terminals for easy, secure installation
- • **Ignition-Proof Safety:** Meets SAE J1117 standard to protect your vehicle’s ignition system
- • **Power Up with Confidence:** Robust 50 Amp capacity for heavy-duty auxiliary circuits
- • **Weatherproof Reliability:** Type III waterproof casing ensures durability in marine and outdoor environments

## Overview

The Eaton Bussmann CB185-50 is a 50 Amp, Type III waterproof automotive circuit breaker designed for auxiliary and accessory circuits in trucks, buses, RVs, and marine vehicles. Featuring a flush mount design with 1/4-28 threaded stud terminals and SEMS nuts, it complies with SAE J1117 ignition protection standards and supports battery isolator systems in multi-battery setups. Manufactured in Mexico, it offers reliable manual reset functionality and a 1-year warranty.

## Description

Type III switchable, waterproof, flush mount manual reset circuit breakers with 1⁄4-28 threaded stud terminals with SEMS nuts installed, and black reset lever. High amp circuit breakers are typically used in auxiliary and accessory circuits for trucks, buses, RV's and marine applications. All high amp circuit breakers comply with the SAE J1117 standard for ignition protection and have applications in battery charging systems that use battery isolators to manage and protect batteries in multi-battery installations.

## Features

- Made in Mexico

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0024JHQ02 |
| Best Sellers Rank | #133,997 in Automotive ( See Top 100 in Automotive ) #152 in Automotive Replacement Circuit Breaker Switches |
| Brand | Bussmann |
| Brand Name | Bussmann |
| Circuit Breaker Type | Standard |
| Current Rating | 50 A |
| Customer Reviews | 4.7 out of 5 stars 212 Reviews |
| Global Trade Identification Number | 00051712597999 |
| Included Components | Circuit Breaker |
| Item Dimensions D x W x H | 10.4"D x 6.5"W x 5.5"H |
| Item Type Name | CB185 Series Automotive Circuit Breaker - Plug In Mounting, 50 Amps, Blade Terminal Connection |
| Manufacturer | Eaton Bussmann |
| Model | CB185-50 |
| Mounting Type | Ceiling Mount |
| Number Of Poles | 2 |
| Number of Items | 1 |
| Number of Poles | 2 |
| Part Number | CB185-50 |
| Product Dimensions | 10.4"D x 6.5"W x 5.5"H |
| UPC | 051712597999 |
| Unit Count | 1 Count |
| Voltage | 48 volts_of_direct_current |
| Warranty Description | 1 year manufacturer |

## Product Details

- **Brand:** Bussmann
- **Circuit Breaker Type:** Standard
- **Current Rating:** 50 A
- **Mounting Type:** Ceiling Mount
- **Product Dimensions:** 10.4"D x 6.5"W x 5.5"H

## Images

![- Eaton Bussmann Automotive Circuit Breaker, CB185 Series, 50 A CB185-50 - 1 Each - Image 1](https://m.media-amazon.com/images/I/51HNNFuIkSL.jpg)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-09-25*